
public class DaYan extends Abstractbird implements IFly{

	@Override
	public void egg() {
		System.out.println("they are egg boring");
	}

	@Override
	public void fly() {
		System.out.println("they can fly");
	}
	
	public void print() {
		System.out.println("point.DaYan");
	}
	
	

}
